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|本期目录/Table of Contents|

 基于AFLP分子标记技术的黑花韭与多星韭遗传多样性与亲缘关系分析()

《广西植物》[ISSN:1000-3142/CN:45-1134/Q]

期数:
2011年03期
页码:
295-299
栏目:
系统与演化植物学
出版日期:
2011-08-01

文章信息/Info

Title:
 Genetic diversity and relationship of Allium tchongchanense and A.wallichii based on AFLP analysis
作者:
 王锦1 何承中1 党承林2 黄瑞复2
 1.西南林业大学, 昆明 650224; 2.云南大学 生命科学学院, 昆明 650031
Author(s):
 WANG Jin1 HE Cheng-Zhong1 DANG Cheng-Lin2 HUANG Rui-Fu2
 1.Southwest Forestry University, Kunming 650224, China; 2.College of Life Science, Yunnan University, Kunming 650031, China
关键词:
 黑花韭 多星韭 遗传多样性 亲缘关系
Keywords:
 Allium tchongchanense A.wallichii genetic diversity relationship
分类号:
-
DOI:
-
文献标识码:
A
摘要:
 采用AFLP分子标记技术分析了分布在滇中、滇西、滇西北的3个黑花韭居群、3个二倍体多星韭居群和6个四倍体多星韭居群的遗传多样性与亲缘关系。结果表明,12个居群在DNA水平上已发生明显分化。居群间的基因分化系数(GST)为0.444。由GST计算的居群间基因流(Nm)为0.625,表明居群间部分基因流动受阻。12个居群间的遗传距离(D)在0.019~0.298之间,平均为0.185。UPGMA聚类结果表明居群聚类关系与地理分布相近似。四倍体多星韭与黑花韭的遗传距离较与二倍体多星韭的遗传距离要小。二倍体多星韭与黑花韭的遗传距离最大,它们之间的亲缘关系最远。
Abstract:
 Genetic diversity and relationship of 12 populations of Allium tchongchanense and A.wallichii which distributed in the central region,western region and northwestern region of Yunnan Province were analyzed by AFLP. The results showed that there was obvious genetic differentiation among populations. Genetic differentiation coefficient GST=0.444. Nm=0.625 calculated by GST showed that gene flow was interrupted among populations. The genetic distance(D)of 12 populations was 0.019-0.298,average 0.185. UPGMA cluster results showed that genetic distance relationship was in accordance with geographic distribution. The genetic distance between A.wallichii tetraploid and A.tchongchanenseow was smaller than that between A.wallichii tetraploid and A.wallichii diploid. The genetic distance was the largest between A.wallichii diploid and A.tchongchanense.

参考文献/References

备注/Memo

备注/Memo:
更新日期/Last Update: 2011-07-01